Linear source in a bounded aquifer: noflow boundaries
Assumptions:
ügeneral
assumptions for linear
source in a bounded (strip) aquifer;
ütwo noflow
boundaries either lateral or profile (Neumann);
üinfinite line of
image wells, signs of rates shown in figure below;
üstorage capacity
both of pumping and observation wells as well as skin factor could
be taken into account (see
Moench’s solutions
accounting for pumping well storage capacity).
Linear source in the confined aquifer with profile
boundaries.
a – 3D view, b – schematic crosssection with a piezometer; c –
schematic crosssection with an observation well; d  schematic
crosssection showing image wells and their vertical
distances.
Linear source in the stripaquifer with parallel noflow
boundaries: 3D and plan views.
Fundamental equations:
Aquifer with a profile boundaries, of infinite lateral
extent:
Lateral boundaries:
Besides the
fundamental equation (for aquifer with a profile boundary) the
following
complementary solutions are
applied:
1)
Moench"s solution for drawdown in a partially penetrating
observation well or a piezometer in the confined anisotropic
aquifer; the solution takes into account the storage capacity of
the pumping well, the storage capacity of the observation well or
piezometer and the skinfactor of the pumping well
Code of WTAQ3
program is used for calculation (author Moench, 1997). See:
Moench A.F.
Flow to a well of
finite diameter in a homogeneous, anisotropic water table aquifer
// Water Resources Research. 1997. Vol. 33, N 6.
P. 1397–1407.
2)
Moench solution for drawdown in the pumping partially penetrating
well in the confined anisotropic aquifer; the solution takes into
account the storage capacity and the skinfactor of the pumping
well.
Code of WTAQ3
program is used for calculation (author Moench, 1997). See:
Moench A.F.
Flow to a well of
finite diameter in a homogeneous, anisotropic water table aquifer
// Water Resources Research. 1997. Vol. 33, N 6.
P. 1397–1407.
To be analyzed
are:
One well pumped at a constant
rate
Pumping
Recovery
One or several wells pumped
at a variable rate
Pumping
